(AI almost got it right…)
This is a concept aimed at publicity and nothing else.
Find an excellent burger bun that is in equal proportions top and bottom. As thin as possible!
Measure the height of each half.
Cook a smash burger that is the exact same height once cooked.
Add round slices of cheese to equal that same height.
And a slice of tomato that is – yep – same height.
And a round onion fritter of the same height.
And a round slice (not a leaf, not shredded) of iceburg lettuce of the same height.
Top > onion > cheese > pattie > tomato > lettuce > bottom.
Everything is exactly the same round shape except the pattie which is irregular and sticks out, with sauce oozing over it.
The only problem I can think of is the cheese – too much and won’t be melted. Possibly have a melted slice of cheese between all four layers. Equals 3 slices.
Onion fritter will be only oniony enough to not distract from the rest.
Lettuce and tomato will compress at eating time.